Finding the Fourth Proportional to 712,529.10, 1,069,398.45 and 292,106.70
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Solution
The fourth proportional to 712,529.10, 1,069,398.45 and 292,106.70 is: 438,407.99
Step by Step Solution
- Step 1: Write the proportion equation
712,529.10 : 1,069,398.45 = 292,106.70 : x - Step 2: Convert to fraction form
712,529.10/1,069,398.45 = 292,106.70/x - Step 3: Cross multiply
712,529.10x = 1,069,398.45 × 292,106.70 - Step 4: Simplify right side
712,529.10x = 312,378,452,214.62 - Step 5: Solve for x
x = 312,378,452,214.62/712,529.10 - Step 6: Final answer
x = 438,407.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.